| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.92 | -0.21 |
| Feb | 0.77 | 0.89 | -0.12 |
| Mar | 1.54 | 1.66 | -0.12 |
| Apr | 2.89 | 3.05 | -0.16 |
| May | 4.13 | 4.33 | -0.20 |
| Jun | 4.49 | 4.66 | -0.17 |
| Jul | 4.16 | 4.22 | -0.06 |
| Aug | 4.25 | 4.23 | 0.02 |
| Sep | 3.30 | 3.31 | -0.01 |
| Oct | 2.73 | 2.72 | 0.01 |
| Nov | 1.53 | 1.64 | -0.11 |
| Dec | 1.00 | 1.28 | -0.28 |
31.50 | 32.91 | -1.41 |